|A comparison of two melting-pressure equations constrained to the triple point using data for eleven gases and three metals (Volume NBS Technical Note 183) - Goodwin, Robert D. (Robert Daniels), 1915-; Weber, Lloyd A.|
Parameters have been determined by a least-squares method for the reduced Simon equation and for a new, empirical melting equation using data for H2, D2, T2, Ne, Ar, Kr, Xe, N2, O2, H2O, Na, K, and Hg. The new equation, (P-P( ))/(T-T( ))=A exp(-(alpha)/T)
Keywords: Melting points; Vapor pressure
|Physico-chemical constants. Melting and boiling point tables (Volume 2) - Carnelley, Thomas, 1852-1890|
"Catalogue of reference literature": v. 1, p. xxi-xxiv
Keywords: Melting points; Boiling points
|Physico-chemical constants. Melting and boiling point tables (Volume 1) - Carnelley, Thomas, 1852-1890|
"Catalogue of reference literature": v. 1, p. xxi-xxiv
Keywords: Melting points; Boiling points
|The gallium melting-point standard (Volume NBS Special Publication 481) - Mangum, B. W.|
Keywords: Gallium. Melting points
|Melting and boiling point tables (Volume 1) - Carnelley, Thomas, 1852-1890|
Keywords: Boiling-points; Melting-points
|Melting and boiling point tables (Volume 2) - Carnelley, Thomas, 1852-1890|
Keywords: Boiling-points; Melting-points
|The "melting-point" of hydrated sodium acetate [microform] - Green, W. F. (William Foster), d. 1944|
Keywords: Acétate de sodium; Fusion, Points de; Melting points; Sodium acetate
|Strain actuated aeroelastic control - Lazarus, Kenneth B|
Viewgraphs on strain actuated aeroelastic control are presented. Topics covered include: structural and aerodynamic modeling; control law design methodology; system block diagram; adaptive wing test article; bench-top experiments; bench-top disturbance rejection: open and closed loop response; bench-top disturbance rejection: state cost versus control cost; wind tunnel experiments; wind tunnel gust alleviation: open and closed loop response at 60 mph; wind tunnel gust alleviation: state cost ver...
Keywords: NUCLEAR FUELS; NUCLEAR PROPULSION; THERMAL REACTORS; FABRICATION; MELTING POINTS; MICROPARTICLES; PHASE DIAGRAMS; SINTERING; URANIUM COMPOUNDS
|Halogen-Containing Gases as Boundary Lubricants for Corrosion-Resistant Alloys at 1200 F - Buckley, Donald H.|
The extreme temperatures anticipated for lubricated parts in advanced flight powerplants dictate the consideration of unconventional methods of lubrication such as solid lubricants and the reactive gases described in the present research. These halogen-containing ''reactive'' gases such as dichlorodifluoromethane, CF2Cl2, are among the most stable of organic molecules. The high ''flash'' temperatures generated at the contacting asperities as a result of frictional heat are sufficient to cause lo...
Keywords: EXPERIMENTATION; VAPOR PRESSURE; POTASSIUM; MELTING POINTS; TEMPERATURE EFFECTS; SODIUM VAPOR; METAL VAPORS; DATA ACQUISITION
|Fuel-Air Mixing and Combustion in Scramjets - Drummond, J. P.|
Activities in the area of scramjet fuel-air mixing and combustion associated with the Research and Technology Organization Working Group on Technologies for Propelled Hypersonic Flight are described. Work discussed in this paper has centered on the design of two basic experiments for studying the mixing and combustion of fuel and air in a scramjet. Simulations were conducted to aid in the design of these experiments...
Keywords: ENERGY CONVERSION; MELTING POINTS; HIGH TEMPERATURE; THERMIONIC POWER GENERATION; PROSTHETIC DEVICES; ORGANIZATIONS; IMPLANTATION; METALS; CHEMICAL ENERGY
|VENUS - SAMSONENKO, L. V|
RECENT INVESTIGATIONS OF THE PLANET VENUS ARE REVIEWED ON THE BASIS OF A WIDE SURVEY OF DOMESTIC AND FOREIGN LITERATURE. THE INDIVIDUAL TOPICS EXAMINED INCLUDE THE CONFIGURATION AND SEASONS OF THE PLANET; ITS MASS, RADIUS, ROTATION, INTERNAL STRUCTURE, MAGNETIC FIELD, CAPTURED RADIATION BELTS, PHOTOMETRIC PROPERTIES AND OPTICAL PARAMETERS; RADIO TEMPERATURE AND THERMAL AND DIELECTRIC PROPERTIES OF THE SURFACE; COMPOSITION OF THE VENUSIAN ATMOSPHERE; SPECTRAL OBSERVATIONS ABOVE THE CLOUD LAYER; T...
Keywords: GAS COMPOSITION; GAS PRESSURE; OCCLUSION; SILICA GLASS; TEKTITES; DERIVATION; GAS VISCOSITY; MELTING POINTS
|A Hardened CARS System Utilized for Temperature Measurements in a Supersonic Combustor - Antcliff, Richard R.|
A coherent anti-Stokes Raman scattering (CARS) system has been hardened for use in a NASA Langley supersonic combustion test cell. The system can obtain temperature cross sections of the flow at three locations. The system is environmentally protected and remotely operated. Measurements were made in a scram-jet combustor model consisting of a rear- ward-facing step, followed by an expansion duct. The duct is nominally 4 feet in length...
Keywords: IDENTIFYING; SILICON CARBIDES; MATERIALS; MATERIALS SELECTION; HIGH TEMPERATURE; CREEP RUPTURE STRENGTH; MELTING POINTS; THERMAL CONDUCTIVITY
|Measurement Sets and Sites Commonly used for Characterizations - Pagnutti, Mary|
Scientists with NASA's Earth Science Applications Directorate are creating a well-characterized Verification & Validation (V&V) site at the Stennis Space Center (SSC). This site enables the in-flight characterization of remote sensing systems and the data that they require. The data are predominantly acquired by commercial, high-spatial resolution satellite systems, such as IKONOS and QuickBird 2, and airborne systems...
Keywords: MICROWAVE ANTENNAS; METHODOLOGY; COMPUTERIZED SIMULATION; PATENTS; MONOPOLE ANTENNAS; MELTING POINTS; TEMPERATURE PROFILES; FUSION (MELTING); BODY TEMPERATURE
|Review of NASA's Planned Mars Program - NON|
The exploration of Mars has long been a prime scientific objective of the U.S. planetary exploration program. Yet no U.S. spacecraft has successfully made measurements at Mars since the Viking missions of the late 1970s. Mars Observer, which was designed to conduct global observations from orbit, failed just before orbit insertion in 1993. The Russian spacecraft Phobos 2 did succeed in making some observations of the planet in 1989, but it was designed primarily to observe Phobos, the innermost ...
Keywords: CORROSION; MELTING POINTS; MULLITES; MOLTEN SALTS; BURNERS; FURNACES; ALUMINUM OXIDES; CERAMICS; PHASE DIAGRAMS; SILICON DIOXIDE
|Calculation of viscosity in molten salts /oxides/ - Sokolov, O. K|
Molten metal oxide viscosity at near melting point temperatures
Keywords: ANIONS; VISCOSITY; CATIONS; MELTING POINTS; METAL OXIDES; MOLTEN SALTS; PYROMETALLURGY; VISCOSITY; MELTING POINT; METAL OXIDE
|Handbook of Thermodynamic Tables & Charts - Kuzman Raznjevic|
Kuzman Raznjevic Handbook of Thermodynamic Tables & Charts McGraw-Hill Book Company / Hemisphere Publishing Corporation 1976 Acrobat 7 Pdf 31.0 Mb. Scanned by artmisa using Canon DR2580C + flatbed option
Keywords: Physics; Thermodynamics; Thermal Properties; Melting Points; Specific Heats; Heat Capacity; Conversion Factors; Steam; Thermal Conductivities
|1958 NASA/USAF Space Probes (Able-1) - NON|
Early in calendar year 1958 Space Technology Laboratories, Inc. (STL) (then Space Technology Laboratories, a division of the Ramo-Wooldridge Corp.) developed for the Air Force Ballistic Missile Division (AFBMD) an Advanced Re-entry Test Vehicle (ARTV) for the purpose of testing ballistic missile nose cones at the full range of 5500 nautical miles. The two-stage ARTV utilized the Thor ballistic missile and the second stage propulsion system developed for the Vanguard program...
Keywords: COPPER; BERYLLIUM; STAGNATION TEMPERATURE; RESISTANCE HEATING; NASA PROGRAMS; SUPERSONIC SPEED; HYPERSONICS; MELTING POINTS; OXIDATION
|Multispectral In-situ Measurements of Organic Matter and Chlorophyll Fluorescence in Seawater: Documenting the Intrusion of the Mississippi River Plume in the West Florida Shelf - DelCastillo, Carlos E.|
We performed multispectral in-situ fluorescence measurement of colored dissolved organic matter and chlorophyll in surface water of the West Florida Shelf using West Labs Spectral absorption and Fluorescence Instrument (SAFIre). Continuous measurements underway allowed us to simultaneously map the dispersion of riverine organic material and chlorophyll on the shelf. By using two fluorescence emission ratios we were able to differentiate between riverine and marine CDOM...
Keywords: MEDICAL EQUIPMENT; COMPUTERIZED SIMULATION; ABLATION; MONOPOLE ANTENNAS; MICROWAVES; PROSTATE GLAND; PATENTS; HEAT OF FUSION; MELTING POINTS; TEMPERATURE PROFILES
|Evaluation of Test/Analysis Correlation Methods for Crash Applications - Lyle, Karen H.|
A project has been initiated to improve crash test and analysis correlation. The work in this paper concentrated on the test and simulation results for a fuselage section. Two drop tests of the section were conducted. The first test was designed to excite the linear structural response for comparison with finite element modal analysis results. The second test was designed to provide data for correlation with crash simulations...
Keywords: SPECTROSCOPY; CARBON DIOXIDE; MARKERS; THERMAL CONTROL COATINGS; SPALLATION; THERMAL BARRIERS (PLASMA CONTROL); ABSORPTION; EMISSION; ENGINE PARTS; THERMOCHEMISTRY; MELTING POINTS
|ART-Ada design project, phase 2 - Lee, S. Daniel|
Interest in deploying expert systems in Ada has increased. An Ada based expert system tool is described called ART-Ada, which was built to support research into the language and methodological issues of expert systems in Ada. ART-Ada allows applications of an existing expert system tool called ART-IM (Automated Reasoning Tool for Information Management) to be deployed in various Ada environments. ART-IM, a C-based expert system tool, is used to generate Ada source code which is compiled and link...
Keywords: NUCLEAR FUELS; MICROPARTICLES; SAFETY; STRESS ANALYSIS; SYSTEMS ANALYSIS; NUCLEAR PROPULSION; PELLETS; REACTOR TECHNOLOGY; THERMAL REACTORS; COATING; COMPATIBILITY; LAYOUTS; MELTING POINTS
|ASK Magazine - NON|
The contents include the following: The Journey Back;What GOES Around, Comes Around;Marbles for the Imagination;End-to-End Commitment;Fly Away; Going Up; Say What You Mean; ASK Talks with William Ready.
Keywords: MICROGRAVITY; MELTING POINTS; INVISCID FLOW; LIQUID PHASES; ALUMINUM OXIDES; YTTRIUM OXIDES; EXPERIMENTATION; PHASE TRANSFORMATIONS; GRAVITATIONAL EFFECTS; TEMPERATURE DEPENDENCE; OPTICAL MATERIALS
|The freezing points of hydrazine-ammonium perchlorate mixtures - Martin, C. H|
Remotely-operated measuring apparatus for determining freezing point curves for solutions of ammonium perchlorate in hydrazine
Keywords: AMMONIUM PERCHLORATES; MEASURING APPARATUS; HYDRAZINES; LOW TEMPERATURE; MEASURING INSTRUMENTS; MELTING POINTS; PERCHLORATES; AMMONIUM PERCHLORATE; FREEZING POINT; HYDRAZINE
|Recent Advances in Solar Cell Technology - Landis, Geoffrey A.|
The advances in solar cell efficiency, radiation tolerance, and cost over the last decade are reviewed. Potential performance of thin-film solar cells in space are discussed, and the cost and the historical trends in production capability of the photovoltaics industry are considered with respect to the requirements of space power systems. Concentrator cells with conversion efficiency over 30%, and nonconcentrating solar cells with efficiency over 25% are now available, and advanced radiation-tol...
Keywords: MERCURY ALLOYS; MELTING POINTS; ZINC ALLOYS; TELLURIUM COMPOUNDS; VISCOMETERS; VISCOSITY; DATA ACQUISITION; TERNARY ALLOYS; SEMICONDUCTORS (MATERIALS); OSCILLATIONS
|A revised stochastic sampled data model for eye tracking movements - Forster, J. D.|
Sampled data model for eye tracking movements revised by changing pursuit system to be continuous and proportional to target rate
Keywords: DIBORANE; TABLES (DATA); THERMAL CONDUCTIVITY; THERMODYNAMIC PROPERTIES; VAPOR PRESSURE; VISCOSITY; LIQUID OXYGEN; PHYSICAL PROPERTIES; BOILING; CONSTANTS; DENSITY (MASS/VOLUME); GRAPHS (CHARTS); HEAT OF FORMATION; MELTING POINTS
|Full-Scale Wind-Tunnel Investigation of a Jet Flap in Conjunction with a Plain Flap with Blowing Boundary-Layer Control on a 35 deg Sweptback-Wing Airplane - Aoyagi, Kiyoshi|
Previous investigations have shown that increased blowing at the hinge-line radius of a plain flap will give flap lift increases above that realized with boundary-layer control. Other experiments and theory have shown that blowing from a wing trailing edge, through the jet flap effect, produced lift increases. The present investigation was made to determine whether blowing simultaneously at the hinge-line radius and trailing edge would be more effective than blowing separately at either location...
Keywords: LUBRICATION; SILICON DIOXIDE; PROTECTION; SEIZURES; MELTING POINTS; HIGH TEMPERATURE; COEFFICIENT OF FRICTION; CERAMIC COATINGS; OXIDATION; EXPERIMENTATION; FRICTION; WEAR; LEAD OXIDES; VITRIFICATION; STABILITY
|Filtering in Hybrid Dynamic Bayesian Networks - Andersen, Morten Nonboe|
We implement a 2-time slice dynamic Bayesian network (2T-DBN) framework and make a 1-D state estimation simulation, an extension of the experiment in (v.d. Merwe et al., 2000) and compare different filtering techniques. Furthermore, we demonstrate experimentally that inference in a complex hybrid DBN is possible by simulating fault detection in a watertank system, an extension of the experiment in (Koller & Lerner, 2000) using a hybrid 2T-DBN...
Keywords: CHEMICAL PROPULSION; PROPULSION SYSTEM PERFORMANCE; STORABLE PROPELLANTS; HYDROXYL COMPOUNDS; AMMONIUM NITRATES; TECHNOLOGY UTILIZATION; MICROTHRUST; LIQUID ROCKET PROPELLANTS; MONOPROPELLANTS; HYDRAZINES; MELTING POINTS; ORBIT INSERTION; OXIDIZERS
|Multidisciplinary High-Fidelity Analysis and Optimization of Aerospace Vehicles - Walsh, J. L.|
An objective of the High Performance Computing and Communication Program at the NASA Langley Research Center is to demonstrate multidisciplinary shape and sizing optimization of a complete aerospace vehicle configuration by using high-fidelity, finite element structural analysis and computational fluid dynamics aerodynamic analysis in a distributed, heterogeneous computing environment that includes high performance parallel computing...
Keywords: TEMPERATURE DEPENDENCE; SIMULATION; SENSITIVITY; PANELS; MIR SPACE STATION; MELTING POINTS; ISOLATION; INDIUM; MICROGRAVITY; LIQUID METALS; DIFFUSION COEFFICIENT; RESEARCH; DIFFUSIVITY; CONVECTION; FLUID MECHANICS; TIME MEASUREMENT; SPACE TRANSPORTATION SYSTEM
|Pioneer Venus Data Analysis - Jones, Douglas E|
Analysis and interpretation of data from the Orbiter Retarding Potential Analyzer (ORPA) onboard the Pioneer Venus Orbiter is reported. By comparing ORPA data to proton data from the Orbiter Plasma Analyzer (OPA), it was found that the ORPA suprathermal electron densities taken outside the Venusian ionopause represent solar wind electron densities, thus allowing the high resolution study of Venus bow shocks using both magnetic field and solar wind electron data...
Keywords: QUANTITATIVE ANALYSIS; BOILING; MELTING POINTS; TECHNOLOGY UTILIZATION; CONSTANTS; TABLES (DATA); SPECTRUM ANALYSIS; METHANE; SOLIDIFIED GASES; LIQUEFIED GASES; ABSORPTION SPECTRA; KRAMERS-KRONIG FORMULA; REFRACTIVITY; PERMITTIVITY
|The environmental control and life support system advanced automation project - Dewberry, Brandon S|
The objective of the ECLSS Advanced Automation project includes reduction of the risk associated with the integration of new, beneficial software techniques. Demonstrations of this software to baseline engineering and test personnel will show the benefits of these techniques. The advanced software will be integrated into ground testing and ground support facilities, familiarizing its usage by key personnel.
Keywords: ATOMS; DISTRIBUTION FUNCTIONS; MELTING POINTS; PALLADIUM; THERMAL EXPANSION; COMPUTERIZED SIMULATION; CRYSTAL GROWTH; CRYSTAL SURFACES; HYDROGEN EMBRITTLEMENT; LIQUID-SOLID INTERFACES; MELTING; MELTS (CRYSTAL GROWTH); MOLECULAR DYNAMICS
|Preliminary Results from the GPS-Reflections Mediterranean Balloon Experiment (GPSR-MEBEX) - Garrison, James L.|
An experiment to collect bistatically scattered GPS signals from a balloon at 37 km altitude has been conducted. This experiment represented the highest altitude to date that such signals were successfully recorded. The flight took place in August 1999 over the Mediterranean sea, between a launch in Sicily and recovery near Nerpio, a town in the Sierra de Segura, Albacete province of Huelva, Spain...
Keywords: CERAMIC MATRIX COMPOSITES; ALUMINUM OXIDES; MODULUS OF ELASTICITY; PREPREGS; MELTING POINTS; MICROSTRUCTURE; SILICON DIOXIDE; STRONTIUM OXIDES; BARIUM OXIDES; FIBER COMPOSITES; HOT PRESSING; FABRICATION; MECHANICAL PROPERTIES; METAL OXIDES; STRESS-STRAIN RELATIONSHIPS; FIBER PULLOUT; SILICON CARBIDES
|Scientific American Volume 73 Number 23 (December 1895)|
Keywords: scientific; american; steam; electric; gas; apparatus; illustrated; bicycle; scientific american; milk; acetylene gas; ten hours; shunt bar; hot water; horse power; armature lever; melting points; gas engine; perspective elevations
|Feeding Frequency Affects Cultured Rat Pituitary Cells in Low Gravity - Hymer, W. C.|
In this report, we describe the results of a rat pituitary cell culture experiment done on STS-65 in which the effect of cell feeding on the release of the six anterior pituitary hormones was studied. We found complex microgravity related interactions between the frequency of cell feeding and the quantity and quality (i.e. biological activity) of some of the six hormones released in flight. Analyses of growth hormone (GH) released from cells into culture media on different mission days using gel...
Keywords: ALLOYING; STRAIN RATE; NICKEL COMPOUNDS; MECHANICAL PROPERTIES; BRIDGMAN METHOD; PRECIPITATION HARDENING; STRESS-STRAIN RELATIONSHIPS; STRUCTURAL DESIGN; YIELD POINT; CARBON; SILICON; HEAT RESISTANT ALLOYS; ALUMINUM; FLOW CHARACTERISTICS; INTERMETALLICS; MELTING POINTS; OXIDATION RESISTANCE
|Sensitivity Analysis of Unsteady Aerodynamic Loads in Cascades - Lorence, Christopher B.|
A method for computing the effect perturbations in the shape of airfoils in a cascade have on the steady and unsteady flow through the cascade is presented. First, the full potential equation is used to describe the behavior of the nonlinear mean (steady) flow and the small disturbance unsteady flow through the cascade. The steady flow and small disturbance unsteady flow versions of the full potential equation are then discretized using quadrilateral isoparametric finite elements...
Keywords: IGNITION; SURFACE PROPERTIES; XENON LAMPS; ARC LAMPS; IRON; ZINC; ZIRCONIUM; TIN; MELTING POINTS; VAPOR PHASES; OXYGEN; METAL SURFACES; SCANNING ELECTRON MICROSCOPY; SPECTROSCOPIC ANALYSIS; EMISSION SPECTRA; X RAY ANALYSIS; METAL-GAS SYSTEMS; GRAVITATIONAL EFFECTS; COMBUSTION; COPPER; TITANIUM; MAGNESIUM; TEMPERATURE PROFILES; CHEMICAL ANALYSIS